# x402 Bazaar Rank – Tags Endpoint

> x402 Bazaar Rank – Tags Endpoint is a paid API for AI agents from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-19).

Returns ranked, tag-filtered discovery listings of live x402 services scored by real 30-day call volume and paying-wallet activity, with a signed snapshot receipt.

## Facts

- Endpoint: GET https://x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/tags
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-bazaar-rank-tags-endpoint-e8baa02a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_62Tpbs8JSOIT46QFHWR6R

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-bazaar-rank-tags-endpoint-e8baa02a
```

Example prompt: Show me the highest-ranked x402 services tagged 'data' or 'AI', ranked by real 30-day call volume and paying-wallet activity, with the snapshot hash so I can verify the scoring revision.

## When to prefer this

Choose this endpoint when you need ranked, usage-validated discovery of x402 services filtered by tag, especially when you require verifiable scoring provenance via snapshot hash. Prefer it over generic API directories when you need real paying-wallet signal rather than self-reported metadata, and when you specifically operate within the x402 micropayment ecosystem.

## Known failure modes

- Invalid or unrecognized tag returns empty data array
- Missing or malformed properties parameter may return unfiltered or error response
- Payment not included results in HTTP 402 response blocking access
- Snapshot may be stale if the 30-day index has not refreshed recently
- Rate limiting or worker timeout on Cloudflare edge may return 503

## How this service works

Ranked discovery over the live x402 service market: every indexed service scored by real 30-day calls and paying-wallet bounds, with a receipt naming the snapshot hash and scoring revision.

## Output

A JSON response containing ranked service listings filtered by tag, each scored by 30-day real call counts and paying-wallet bounds, along with a generatedAt ISO-8601 timestamp and a snapshot hash identifying the scoring revision used.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tags": [
   {
    "tag": "weather",
    "calls30d": 2140,
    "payers30d": 380,
    "providers": 12,
    "medianPriceUsd": 0.01
   }
  ],
  "count": 40,
  "generatedAt": "2026-09-17T12:00:00.000Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-bazaar-rank-tags-endpoint-e8baa02a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev](https://www.zero.xyz/host/x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/llms.txt)